Abstract: A transformer includes first and second primary windings serially electrically connected in a primary-side series combination. The transformer further includes a secondary winding disposed between the first primary winding and the second primary winding. The transformer further includes first and second shielding windings serially electrically connected in a shielding series combination. The first shielding winding is disposed between the first primary winding and the secondary winding, and the second shielding winding is disposed between the second primary winding and the secondary winding.

Abstract: The present invention refers to HV apparatus, in particular a HV dry current transformer, insulated with an insulating gel, or a voltage transformer, insulated with an insulating gel. The dry HV current transformer comprises at least two electrically conductive elements i.e. a head transformer cover, a head housing base, a core casing and a primary conductor. In the dry HV current transformer at least one of the electrically conductive elements has a coating made of solid insulating material separating the surface of the conductive elements from the insulating gel and adapted for limiting the electron emission from the conductive elements into the insulating gel. The voltage transformer comprises a bottom external housing, a bottom support flange, a core.

Abstract: An ignition coil for an internal combustion engine is provided. The ignition coil includes: a primary coil and a secondary coil magnetically coupled to each other; a second spool which the secondary coil is wound around; and a connection terminal connected to a high voltage side of the secondary coil and supported by a terminal support portion provided at the second spool. The terminal support portion includes an insertion hole portion allowing the connection terminal to be inserted in an insertion direction as a coil radial direction. The connection terminal includes a protrusion protruding outside the connection terminal in a direction orthogonally crossing the insertion direction. The protrusion is engaged to the insertion hole portion from inward in the coil radial direction.

Abstract: An inductor component includes a core including a substantially column-shaped shaft and a pair of supports provided at both ends of the shaft; terminal electrodes provided on the supports; a wire wound around the shaft and including end portions connected to the terminal electrodes; and a bottom cover member that covers a boundary portion between the shaft and one of the supports at a bottom of the shaft. The wire is exposed at a side of the shaft.

Abstract: A coil component includes a body having one surface and the other surface opposing each other in one direction, and a plurality of walls each connecting the one surface to the other surface; a coil portion buried in the body, and having both ends exposing to one of the plurality of walls of the body; first and second external electrodes respectively including first and second terminal electrodes disposed on one surface of the body and spaced apart from each other, and first and second connection electrodes respectively connecting the first and second terminal electrodes to both ends of the coil portion; a first external insulating layer disposed on the other surface of the body; and a first shielding layer disposed on the external insulating layer.

Abstract: A magnetic part including: a coil that generates a magnetic flux when a current flows through the coil; a core that is formed of a magnetic substance that forms a magnetic path of the magnetic flux; a support member that supports the core; and a fixing member that fixes the core to the support member. The core includes a column portion that is vertically provided with respect to a surface where the core is in contact with the support member. The fixing member presses the column portion of the core against the support member. The support member has a recess in a portion of a facing surface that faces the core, where the portion of a facing surface does not face the column portion.

Abstract: A transformer includes two first cores, a primary winding and a secondary winding. The secondary winding has a first section and a second section. The first section has a first outlet end, a second outlet end, and a first connection end, wherein the first outlet end and the second outlet end are located at a side of the first section, the first connection end is located at an opposite side of the first section. The second section has a third outlet end, a fourth outlet end, and a second connection end. The third outlet end and the fourth outlet end are located at a side of the second section, and the second connection end is located at an opposite side of the second section. A portion of the primary winding is located between the first section and the second section of the secondary winding.

Abstract: A magnetic conductive substrate is provided and is used for wireless charging or wireless communication. The magnetic conductive substrate includes a first magnetic conductive layer, a second magnetic conductive layer, and a third magnetic conductive layer. The first magnetic conductive layer has a first magnetic permeability, the second magnetic conductive layer has a second magnetic permeability, and the third magnetic conductive layer has a third magnetic permeability. The second magnetic conductive layer is disposed between the first magnetic conductive layer and the third magnetic conductive layer, the first magnetic permeability is different from the second magnetic permeability, and the second magnetic permeability is different from the third magnetic permeability.

Abstract: Provided is a brace apparatus for a transformer tank and a method for determining the length thereof. The brace apparatus is mounted on a transformer tank so as to reinforce the transformer tank. The brace apparatus has a brace main body forming the exterior thereof, and in order to block the occurrence of resonance in an inner space of the brace main body, the length of the brace main body is set to be at a value at which resonance does not occur in the inner space, or a partition plate is provided to the brace main body so as to block the occurrence of resonance. In present invention, the length of the brace apparatus may be set by means of a simple configuration, thereby enabling the prevention of noise from occurring due to resonance.

Abstract: A coil component includes a main body portion containing resin and having a hole portion, a coil provided in the main body portion, and a substantially cylindrical pipe arranged inside the hole portion. The coil includes an inner wiring embedded in the pipe and an outer wiring exposed from the main body portion. The inner wiring and the outer wiring are integrally continuous.

Abstract: An electronic component includes a magnetic body containing magnetic metal powder; and external electrodes disposed on an outer portion of the magnetic body. The external electrodes include first plating layers in direct contact with the magnetic body.

Abstract: A coil electronic component includes a magnetic body having an internal coil part embedded therein, in which the internal coil part includes an insulating substrate, a first insulator, a coil conductor, and a second insulator. The first insulator is disposed on at least one of first and second main surfaces of the insulating substrate and has a groove formed therein. The coil conductor is formed inside the groove. The second insulator encloses the insulating substrate, the first insulator, and the coil conductor. The first insulator may be formed to a thickness larger than (and no more than 40 ?m thicker than) a thickness of the coil conductor on the insulating substrate. The first insulator may be formed to a width of 3 ?m to 50 ?m. Further, the second insulator may extend to a thickness 1 ?m to 20 ?m larger than that of the first insulator on the insulating substrate.

Abstract: A coil includes a first winding portion having a first wire helically wound including at least one strand, and a second winding portion having a second wire helically wound including a plurality of strands electrically connected to the first winding portion and has an axis that is parallel to an axial direction of the first winding portion, wherein the strands included in the second wire are arranged in parallel in an axial direction of the second winding portion, the number of strands included in the second wire is greater than the number of strands included in the first wire, the cross-sectional area of the second wire is equal to or larger than the cross-sectional area of the first wire, and the cross-sectional area of each strand included in the second wire is equal to or smaller than the cross-sectional area of each strand included in the first wire.

Abstract: A transformer is provided, which includes a tank having an enclosed volume with an insulating material, the tank including at least one channel extending through the tank, wherein the interior of the at least one channel is separated from the enclosed volume of the tank by a channel wall. A transformer core is provided outside of the enclosed volume, including at least one core leg extending through the tank via the at least one channel. At least one coil is located inside the enclosed volume, the coil being wound about the at least one channel, the tank has an inner wall or outer wall including a weakly-conductive layer, which includes fibers embedded in an impregnating material.

Abstract: A coil component in which a change in thicknesses of the winding part is prevented is provided. According to the coil component, since each of a pair of neighboring resin walls and a seed part between the pair of resin walls are separated by a predetermined distance, a plating part grown on the seed part is easy to grow uniformly between the pair of neighboring resin walls. For this reason, the winding part whose surface is gentle and in which a change in thickness is prevented is obtained by plating growth.

Abstract: A coil component according to one embodiment of the present invention includes: a base body having a plurality of magnetic layers; a first external electrode provided on the base body; a second external electrode provided on the base body and spaced from the first external electrode; a coil conductor provided in the base body; a first lead-out conductor including a first lead-out conductor first pattern and a first lead-out conductor second pattern; and a second lead-out conductor connecting a second end of the coil conductor and the second external electrode. The first lead-out conductor first pattern is provided between the magnetic layers so as to be connected to a first end of the coil conductor and the first external electrode. The first lead-out conductor second pattern is provided between the magnetic layers so as to be connected to the first lead-out conductor first pattern and the first external electrode.

Abstract: To provide a coil device having high bonding strength and bonding reliability. The coil device 1 has a core member 10 having a winding core and a flange 12, a wire 32 wound around the winding core, and a terminal electrode 52 connected with a lead 32a of a wire 32 provided to the flange 12; and an easy bonding layer 70 is formed on the surface of the terminal electrode 52 connected with the lead 32a in a stripe form 70a. the stripe form each bonding layer 70a is formed as a laser mark 71. In the coil device 1, a residue of coating film 78 which may be generated when the lead 32a of the wire 32 is connected to the mounting part 65 of the terminal electrode 52 is removed by laser.

Abstract: Provided is a reactor including a coil having a pair of winding portions; and a ring-shaped magnetic core, the magnetic core including: a pair of inner core portions arranged inside of the winding portions; and a pair of outer core portions respectively arranged outside of one end and outside of another end in an axial direction of the winding portions, the reactor including a non-magnetic reinforcing member that is arranged between the pair of winding portions and is coupled to the inner end surfaces of the pair of outer core portions. An axial rigidity of the reinforcing member is 2×107 N/m or more. Here, the axial rigidity is a value obtained by multiplying the cross-sectional area of the reinforcing member perpendicular to the axial direction of the winding portions and the Young's modulus of the reinforcing member, and dividing the result by the length of the reinforcing member.

Abstract: A coil device includes a bobbin including a hollow cylindrical portion and first and second flanges disposed at ends of the hollow cylindrical portion, and having a first partition located between the first and second flange and a second partition located between the first partition and second flange; the first winding wound around the outer periphery of the hollow cylindrical portion between first partition and the first flange; the second winding wound around the outer peripheral surface of the hollow cylindrical portion between the first partition and the second flange, and wound around both sides of the second partition according to a predetermined position. The coil device can wind the winding wire of the second winding at a predetermined position, thereby reinforcing the secondary side magnetic coupling while controlling or reducing the leakage inductance manufacturing error between the primary and secondary side due to difference in the secondary side winding.

Abstract: A coil component includes: a core having first and second shafts arranged in a line, and first and second opposed members; a case supporting the core and having a housing accommodating the core, and first and second outer walls opposing each other; a coil wound around the first and second shafts; and first and second metal terminals being electrically connected to the coil and being provided at the first and second outer walls, respectively. The first and second opposed members are opposed to each other and sandwich the first and second shafts therebetween.