A coil inductor includes a plurality of conductive coils stacking in a first direction. The coil inductor includes a topmost conductive coil including a first portion extending in a second direction perpendicular to the first direction and a second portion extending in the first direction, a bottommost conductive coil including a third portion extending in the second direction and a fourth portion extending in the first direction, and at least one intermediate conductive coil extending in the second direction and disposed between the topmost conductive coil and the bottommost conductive coil.

An electronic component includes a wire winding wound around a central axis. The wire winding having first and second ends, and first and second terminals are connected to or formed by the first and second ends. The terminals provide electrical contacts for connecting the component into a circuit. The component has a wet press molded body made of a mixture of magnetic and non-magnetic material that is heated and pressed about the wire winding. The wet press molded body leaves at least a portion of the terminals exposed for mounting the component to the circuit.

A waterproof electromagnetic device and production method thereof, the waterproof electromagnetic device having a magnetic core (10) surrounded by at least one coil (20); an electronic circuit board (30) including at least connection pins (31) electrically connected to the at least one coil (20); and an enclosure (40) overmolded on a waterproof manner surrounding the magnetic core (10), the at least one coil (20) and the electronic circuit board (30); wherein the magnetic core (10) further includes several protrusions (11) projecting from the magnetic core (10) towards an external surface of the enclosure (40), so that a centering of the magnetic core (10) within the enclosure (40) is provided during the overmoulding operation.

In a retainer member for retaining a noise reduction member, a retaining portion for retention of a noise reduction member wound with a cable is provided with a claw for locking the cable wound on the noise reduction member.

An inductor includes a core including a columnar shaft and a pair of supports on respective end portions of the shaft, a terminal electrode disposed on each support, and a wire wound around the shaft and having two end portions connected to the terminal electrodes, corresponding to the two end portions, on the supports. In the inductor, an impedance is approximately 500 or higher with respect to an input signal having a frequency of approximately 3.6 GHz.

Embodiments of the present disclosure are directed towards an inductor structure having one or more strips of conductive material disposed around a core. The strips may have contacts at a first end and a second end of the strips, and may be disposed around the core with a gap between the contacts. The inductor structure may be mounted on a surface of a substrate, and one or more traces may be formed in the surface of the substrate to electrically couple two or more of the strips of conductive material to one another to form inductive coils. Other embodiments may be described and/or claimed.

An electronic device package box is adapted to be mounted with a plurality of electric coil components, and includes: a base unit having a first abutment surface and defining a receiving space therein for receiving the electric coil components; a cover unit removably covering the receiving space of the base unit and having a second abutment surface that abuts against the first abutment surface; a plurality of conductive pins mounted to the base unit and adapted to be electrically connected to the electric coil components; and an engaging unit including first and second engaging members respectively formed on the first and second abutment surfaces, the first engaging member being slidable relative to the second engaging member.

Disclosed are apparatus and methods for arrayed embedded magnetic components that include magnetic devices that have a core that is embedded between two or more substrates and a winding pattern surrounding the core that is implemented on and through the two or more substrates. The winding pattern is operable to induce a magnetic flux within the core when energized by a time varying voltage potential. The winding pattern may be implemented by printed circuit layers, plated vias, other electrically conductive elements, and combinations thereof. Arrayed embedded magnetic components include two or more electrically interconnected magnetic devices positioned side-by-side in a horizontal integration, positioned top-to-bottom in a vertical integration, or combinations thereof. The magnetic devices may have a magnetic functionality such as, but not limited to, a transformer, inductor, and filter. Disclosed magnetic components and methods provide for low cost construction, consistent performance, and a low profile form, among other benefits.

One object of the present invention is to provide a coil element having a reduced thickness but is less prone to be broken. The coil element according to an embodiment of the present invention has a rectangular parallelepiped shape and has a principal surface including long sides and short sides. The coil element includes a drum core, a winding wound around the drum core, a first external electrode electrically connected to one end of the winding, and a second external electrode electrically connected to the other end of the winding. The drum core in the embodiment includes a first flange, a second flange, and a winding core connecting between the first flange and the second flange. The winding core extends along the short sides of the principal surface.

An energy harvesting method and apparatus for harvesting electrical energy from an elongate conductor through which alternating electrical current is flowing. The apparatus includes a magnetically permeable ferromagnetic metal U-shaped core. An electromagnetic coil surrounds the central section of the core. The core legs form an opening leading to a gap between the legs. The opening and gap are larger than the cross section of the conductor. The conductor is received through the opening into the gap whereat the flowing alternating electric current electromagnetically couples with the core and induces electric current in the coil. The opening is maintained open for selectively removing the conductor therethrough. The apparatus is encapsulated within an electrically insulative housing for electrically insulating and preventing physical contact with the conductor. The apparatus powers an electronic circuit which senses and transmits, via electromagnetic radiation, the operational status of the conductor.