A transformer comprises an iron core, a support module, a winding unit, a potting box. The potting box includes an inner wall, an outer wall and a bottom plate and the inner wall is sleeved in the outer wall. The bottom plate is connected to a bottom portion of the inner wall and a bottom portion of the outer wall and a potting space is defined by the outer wall, the inner wall and the bottom plate. The winding unit is disposed in the potting space and a magnetic pole of the iron core penetrates through an inner side of the inner wall of the potting box. The support module is disposed between at least one end surface of the potting box and a cover of the iron core to form an insulation clearance. The support module is close to the inner wall of the potting box.

An ignition coil includes a primary coil and a secondary coil magnetically coupled from each other; a core cover disposed around the primary coil and the secondary coil; and an outer peripheral core supported by the core cover. The core cover includes a pair of support portions that support the outer peripheral core; and at least one of the pair of support portions includes a flexible portion that elastically presses the outer peripheral core, the flexible portion having flexibility in an arrangement direction separating the pair of support portions.

A magnetic power component includes a printed circuit board and a magnetic core assembled to the printed circuit board. The magnetic core includes a magnetic core body and a plurality of heat dissipation teeth. The magnetic core body is bonded to the printed circuit board. The plurality of heat dissipation teeth is protruded from an outer surface that is of the magnetic core body and that faces away from the printed circuit board. The plurality of heat dissipation teeth and the magnetic core body are bonded through direct contact.

A multi-phase inductor structure is provided. The multi-phase inductor structure includes a first magnetic core, two second magnetic cores, and two first electrical conductors. The two second magnetic cores are respectively arranged on opposite sides of the first magnetic core, and each have a first engagement surface. A first annular convex wall and a first upright convex wall are formed on the first engagement surface, and a first recess is formed therebetween. The two first electrical conductors are respectively arranged in two of the first recesses of the first engagement surface, and each have has a first body and two first pins that are respectively connected to two ends of the first body. The two first pins extend in opposite directions. A magnetic permeability of the first magnetic core is different from a magnetic permeability of each of the two second magnetic cores.

A transformer support structure for mounting a transformer assembly includes a bottom element having a support surface with a horizontal orientation including two longitudinal side edges which delimit the support surface. The longitudinal side edges run parallel to each other in a y-direction. A cross bar is supported on the support surface and runs crosswise to the longitudinal side edges. At least two reinforcement units for reinforcing the cross bar extend over an outer front surface of the cross bar in a vertical direction. The reinforcement units are positioned above the longitudinal side edges and are aligned with the longitudinal side edges.

The present disclosure discloses a dry-type transformer with an elliptical iron core, comprising a transformer housing, a heat dissipation mechanism, an elliptical iron core, a coil, a clamping mechanism and an upper cover, the heat dissipation mechanism being arranged in a horizontal direction and fixedly assembled with the transformer housing, one end, away from the transformer housing, of the heat dissipation mechanism being in contact with ground, the elliptical iron core being arranged in a vertical direction inside the transformer housing, the coil being wound on the elliptical iron core, the clamping mechanism being sheathed on one side, away from the elliptical iron core, of the coil, the upper cover being arranged at a top end of the transformer housing, and the upper cover being fixedly assembled with the transformer housing via a bolt structure. The present disclosure uses an iron core with an elliptical cross section, wherein three-phase iron cores are arranged in a regular triangle shape and are respectively located at each midpoint position of edges of the triangle, and a winding manner of coil adjacent to the iron core is also different. In addition, a clamping mechanism is provided in the present disclosure, so that it is possible to implement a remedy for re-detachment of the coil during clamping, thereby extending a service life of the dry-type transformer.

A power inductor includes a housing and a magnetic core disposed in the housing. The core includes a first segment and a second segment spaced apart from each other to define a gap. The first and second segments are supported in the housing such that the they are movable relative to each other to increase and decrease the size of the gap. A fluid having a positive thermal expansion coefficient is disposed in the housing such that expansion and contraction of the fluid due to change in temperature increases and decreases the gap, respectively.

A reactor including: a coil having a wound portion; a magnetic core that is disposed inside and outside the wound portion and forms a closed magnetic circuit; and a resin mold that includes an inner resin disposed between the wound portion and the magnetic core, and does not cover an outer-peripheral face of the wound portion.

Provided is a reactor including a coil that has wound portions formed by winding a winding wire, and a magnetic core that includes inner core portions arranged inside of the wound portions and outer core portions arranged outside of the wound portions. The reactor includes an outer resin portion covering at least outer surfaces of the outer core portions. A terminal platform is formed in one piece protruding on the outer surface of an outer resin portion among the outer resin portions and has fastening portions configured to fasten terminal fittings connected to end portions of the winding wire to terminals of an external wiring. A fixing portion is formed in one piece on the terminal platform and fixes the reactor to an installation target. The terminal platform and the fixing portion are integrated and the thickness of the terminal platform is less than that of the fixing portion.

A method is described for the assembly of a magnetic core for a transformer, with the following steps: Cutting sheet metal blanks from transformer sheet, stacking the sheet metal blanks to form magnetic core segments, placing a permanent magnet at one of the magnetic core segments so that the latter is magnetized by the permanent magnet, formation of the magnetic core by placing the remaining magnetic core segments against the permanent magnet, or against a magnetic core segment already magnetized by the permanent magnet. A magnetic core is also disclosed.