Abstract: A current lead arrangement for supplying current to a superconducting magnet coil, comprising a current lead and a cryogenic refrigerator. The current lead comprises a first section of low temperature superconductor (LTS) wire, joined to a second section of a high temperature superconductor (HTS) material, in turn joined to a third section of a resistive material. The cryogenic refrigerator comprises a first cooling stage and a second cooling stage. A lower end of the third section and an upper end of the second section are thermally linked to the first cooling stage, a lower end of the first section is thermally and electrically connected to the superconducting magnet coil.

Abstract: A superconducting coil device includes a vacuum vessel, a superconducting coil located inside the vacuum vessel, a heat shield surrounding the superconducting coil within the vacuum vessel, and an electric current introduction line for introducing an electric current into the superconducting coil. The electric current introduction line includes an outer current lead part located outside of the heat shield, within the vacuum vessel, and thermally coupled to the heat shield, and an inner current lead part located inside of the heat shield and connecting the outer current lead part to the superconducting coil. The outer current lead part includes a main body serving as an electric current path to the superconducting coil, an insulation layer that covers the main body, and a heat shield layer that covers the insulation layer and has a lower emissivity than the insulation layer.

Abstract: In a coil device of a power conversion device, a laminated coil includes planar coils laminated on a surface of a support. A plurality of cores are spaced apart from each other and aligned in a longitudinal direction of the planar coils, and each core includes a portion around which the laminated coil is wound on the surface of the support. A first protruding member (is arranged between a pair of cores adjacent to each other with respect to a longitudinal direction and is fixed to the support. A first fixing member is arranged above the first protruding member. The laminated coil is sandwiched and fixed between the first fixing member and the first protruding member such that a first surface is in contact with the first protruding member and a second surface is in contact with the first fixing member.

Abstract: A first substrate has recesses respectively provided at corner portions of a bottom surface. Outer electrodes each have an electrode body portion provided around an associated one of the recesses on the bottom surface. The electrode body portions each are made up of a plurality of laminated metal layers. A first metal layer located at an innermost side of the plurality of metal layers is formed on the bottom surface at a position spaced apart from a short-side ridge portion between the bottom surface and a side surface.

Abstract: A multi-phase coupled inductor includes at least three windings between a first plane and a second plane and a magnetic core that includes a first magnetic core, a second magnetic core and at least three magnetic core pillars, the first and second magnetic cores are respectively located at two ends of the windings, the magnetic core pillars connect the first and second magnetic cores and form at least three magnetic core units together with the first and second magnetic cores. The magnetic core units and the windings are arranged correspondingly on a one-to-one basis, the magnetic core units surround the corresponding windings and extend from the first plane to the second plane in a same direction, and projections of the at least three magnetic core units on the first plane enclose at least three enclosed areas which correspond to the windings on a one-to-one basis.

Abstract: A solenoid contains a yoke, a bobbin having an electromagnetic coil disposed inside the yoke, and an iron core disposed inside the bobbin. In the solenoid, a connector part incorporating a prescribed number of terminal metal fittings is provided on one end portion of the bobbin.

Abstract: There are provided a chip electronic component and a board having the same. The chip electronic component includes: a substrate; a first internal coil part disposed on one surface of the substrate; a second internal coil part disposed on the other surface of the substrate opposing one surface thereof; a via penetrating through the substrate to connect the first and second internal coil parts to each other; and first and second via pads disposed on one surface and the other surface of the substrate, respectively, to cover the via, wherein the first and second via pads are extended in a direction toward portions of the first and second internal coil parts adjacent thereto.

Abstract: A reactor includes an assembly of a coil and a magnetic core; a case that houses the assembly; and a sealing resin portion that seals a portion of the assembly. The reactor further includes a heat dissipation member interposed between the coil and the case. The case has an inner bottom surface and the pair of coil facing surfaces have inclined surfaces that are inclined away from each other. The coil includes a first winding portion and a second winding portion disposed opposite of the inner bottom surface with respect to the first winding portion. The first winding portion and the second winding portion are parallel with each other, and have the same width. The heat dissipation member includes a first heat dissipation portion interposed between at least one of the inclined surfaces and the second winding portion.

Abstract: A coil component includes a body, a support portion disposed in the body, a coil portion disposed on a first surface of the support portion, a lead portion disposed on a second surface of the support portion facing the first surface of the support portion and connected to the coil portion, and a via penetrating through the support portion to connect an inner end portion of the coil portion and an inner end portion of the lead portion to each other, wherein the coil portion includes a first conductive layer embedded in the support portion and having a first surface exposed to or facing the first surface of the support portion, a second conductive layer disposed on the first surface of the first conductive layer, and a third conductive layer disposed on the second conductive layer and protruding from the first surface of the support portion.

Abstract: An inductor includes discrete magnetic core pieces fabricated from different magnetic materials having different magnetic properties. An inverted U-section conductive coil includes a top section and first and second legs to establish a surface mount connection to a circuit board, and the discrete magnetic core pieces are assembled around the inverted U-section conductive coil. The first and second discrete magnetic core pieces are operable to reach magnetic saturation at respectively different current loads applied to the coil when the circuit board is energized, imparting multiple steps of inductance rolloff response to a range of current loads.

Abstract: A wheel control mechanism includes a support base, a wheel module, a first magnetic module and a second magnetic module. The wheel module, the first magnetic module and the second magnetic module are installed on the support base. The first magnetic module generates a magnetic attractive force to attract a metal ratchet of the wheel module. By adjusting the position of the second magnetic module relative to the first magnetic module, the strength of the magnetic attractive force is changed. Consequently, the rotation of the wheel module results in a tactile feel or does not result in the tactile feel.

Abstract: This application provides a direct current contactor which includes a housing, and a first fixed contact and a second fixed contact that are fastened into the housing; a first moving contact and a second moving contact that are located in the housing; a drive mechanism, including: an insulation rod connected to the first moving contact and the second moving contact, and a drive component that drives the insulation rod to drive the first moving contact and the second moving contact to synchronously move toward the first fixed contact and the second fixed contact; and a pressing component configured to push the moving contact firmly against the fixed contact. Only two pairs of contacts are used to implement connection/disconnection of two electrode lines, so that a total contactor resistance is reduced by half compared with that in the conventional technology.

Abstract: A coil component includes spiral conductor patterns S1 and S2 and insulating resin layers that cover the spiral conductor patterns S1 and S2, respectively. An outermost turn of the spiral conductor pattern S1 has a widened part. As a result, an outer wall surface part constituting the outer wall surface of the outermost turn in the radial direction and an outer wall surface part constituting the outer wall surface of the outermost turn of the spiral conductor pattern S2 in the radial direction differ in radial position from each other. Overlap of the insulating resin layers in the lamination direction is reduced to suppress thermal expansion or contraction of the insulating resin layers in the lamination direction at the overlap. This can relieve a stress applied to the interface between the spiral conductor pattern and the insulating resin layer.

Abstract: A coil component includes a body having a core, a coil portion disposed in the body and having a central portion in which the core is disposed, a first external electrode and a second external electrode, each connected to the coil portion, a third external electrode spaced apart from each of the first and second external electrodes, and a noise removal portion disposed to at least partially surround the coil portion between a surface of the body and the core and having both end portions, each connected to the third external electrode.

Abstract: The present invention pertains to a transformer, and more specifically, to a transformer which includes a primary coil unit comprising wound conductive lines, and a secondary coil unit in which conductive plates are stacked. The transformer according to an embodiment of the present invention may include: a bobbin; a core unit which is coupled to the bobbin along the outer side of the bobbin; and a plurality of conductive plates which are inserted into the bobbin and stacked in the thickness direction.

Abstract: A coil component includes a nonmagnetic body having a cured product of a polymer resin, an insulating substrate embedded in the body and having a thickness of 30 ?m or less, a coil portion including first and second coil patterns respectively disposed on first and second opposing surfaces of the insulating substrate, and first and second external electrodes disposed on a surface of the body to be connected to each of the first and second coil patterns exposed to the surface of the body.

Abstract: An actuating mechanism includes a main body, an electromagnetic device fixed to the main body, and a swinging rod swingably connected to the main body. A position of connection between the swinging rod and the main body is opposite to an iron core of the electromagnetic device, and an upper end of the swinging rod is opposite to and spaced apart from the electromagnetic device. A permanent magnet is disposed on the upper end of the swinging rod, and a magnetic pole direction of the permanent magnet and a magnetic pole direction of the electromagnetic device cross each other. Since the permanent magnet on the swinging rod is opposite to and spaced apart from the electromagnetic device, the swinging rod is not in contact with the electromagnetic device during working process. This avoids knocking of the swinging rod on other components, and therefore prevents noise, reduces wear.

Abstract: A first yoke is arranged in a contact direction with respect to a movable contact piece. A second yoke is arranged in an opening direction with respect to the movable contact piece. The first yoke and the second yoke are configured to generate a magnetic force that attracts the first yoke and the second yoke to each other when the movable contact contacts the fixed contact and is energized. The first yoke and the second yoke are arranged not to contact each other so that the movable contact piece can contact the fixed terminal in a state where the movable contact and the fixed contact are lost.

Abstract: An electrical transformer and method of manufacturing an electrical transformer. The electrical transformer comprises a set of primary windings comprising first and second primary windings connected in parallel and first and second sets of secondary windings. Each of the first and second sets comprises a plurality of secondary windings that are connected in parallel. The secondary windings of the first set are electrically isolated from the secondary windings of the second set. The set of primary windings and the first and second sets of secondary windings are arranged in a stacked structure in which the secondary windings of the first set are interleaved with the secondary windings of the second set, and at least one secondary winding of the first set and/or at least one secondary winding of the second set is arranged between the first and second primary windings.

Abstract: A multilayer coil component includes an element body containing a plurality of metal magnetic particles and a resin existing between the plurality of metal magnetic particles and a coil disposed in the element body and configured to include a plurality of electrically interconnected coil conductors. At least one of the plurality of coil conductors has a spiral shape and has conductor portions adjacent to each other when viewed from a direction along a coil axis of the coil. The conductor portion includes a straight conductor portion extending in a straight line and a connecting conductor portion connecting the straight conductor portion and constituting a corner portion of the coil conductor. The metal magnetic particles between the connecting conductor portions adjacent to each other are lower in density than the metal magnetic particles between the straight conductor portions adjacent to each other.