A differential mode choke coil component includes a substantially drum-shaped core, a substantially plate-shaped core, and first and second wires. The plate-shaped core is secured to each of the first and second flanges by using an adhesive with the first major surface facing the top surface of each of the first and second flanges with a spacing. The spacing has a mean value greater than or equal to about 20 μm between the first major surface and the top surface of each of the first and second flanges.

An inductor includes a plurality of stacked core parts having aligned central openings, at least one spacer separating the core parts from one another, and a winding comprising a plurality turns wound around the stack of core parts through central openings of the core parts. The at least one spacer may include respective groups of spacers disposed between respective pairs of the core parts. In some embodiments, the at least one spacer may include a plurality of spacers disposed between first and second ones of the core parts and radially distributed in a circular pattern aligned with the first and second core parts.

A vehicle, an inductor assembly for power electronics in a vehicle, and a method of providing and cooling an inductor assembly are provided. According to one example, the vehicle is provided with an inductor assembly in a vehicle electrical system with a variable voltage converter (VVC). The inductor assembly includes a core formed from a plurality of core segments spaced apart from one another to define gaps therebetween, with each of the plurality of core segments forming an internal fluid passage extending therethrough. The inductor assembly has a winding surrounding at least one of the plurality of core segments. A fluid system is connected to the core to provide pressurized fluid to the fluid passages of the plurality of core segments to circulate fluid through the core of the inductor assembly.

A coil device includes a pair of first core and second core, a third core, and a pair of first coil and second coil. The third core is disposed next to the first core or the second core. The pair of first coil and second coil is each disposed between any two of the first core, the second core, and the third core next to each other. Plate surfaces of the first coil and the second coil are opposed to each other. Each of the first coil and the second coil is partly exposed in a lateral direction of the first core, the second core, or the third core.

A coil device includes a core and a plurality of coils arranged in the core. A distance of a second gap formed by portions of the core located inside at least one of the coils is larger than that of a first gap formed by other portions of the core located between the coils next to each other.

A coil device includes a core and a plurality of coils arranged in the core. A distance of a second gap formed by portions of the core located inside at least one of the coils is larger than that of a first gap formed by other portions of the core located between the coils next to each other.

A magnetic device, including a hybrid core including a first magnetic material as a first flux path that carries a low-frequency flux component and a second magnetic material as a second flux path that carries a high-frequency flux component that is a higher frequency flux component than the low-frequency flux component, in which the hybrid core controls distribution of the low-frequency flux component and substantially separates the low-frequency flux component and the high-frequency component; and at least one set of winding turns. The hybrid core includes at least one air gap to provide control over inductance of the magnetic device.

A magnetic device, including a hybrid core including a first magnetic material as a first flux path that carries a low-frequency flux component and a second magnetic material as a second flux path that carries a high-frequency flux component that is a higher frequency flux component than the low-frequency flux component, in which the hybrid core controls distribution of the low-frequency flux component and substantially separates the low-frequency flux component and the high-frequency component; and at least one set of winding turns. The hybrid core includes at least one air gap to provide control over inductance of the magnetic device.

A complex-shaped air gap for electrical components utilizing magnetically permeable material. The air is enabled to thermally distribute heat through a magnetic core and thus reduce issues relating to heat localization. The air gap shape is maximized for length, and in the preferred embodiment is a spiral shape. The preferred embodiment is built by a lithography process, without cutting, to enable the thin spiraling shape.