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.

The invention comprises an apparatus, comprising: an inductor, the inductor comprising: an electrical turn about an inductor core, the inductor core comprising a ring shape; the electrical turn comprising a first width at a first radial distance from a center of the inductor core and a second width at a second radial distance from the center, the second width at least ten percent larger than the first width. Optionally and preferably, the electrical turn comprises: a first cast element and a second cast element and a mechanical connection connecting the first cast element to the second cast element, such as an aluminum weld.

The invention comprises a method for manufacturing an inductor, comprising the steps of: casting a cast winding comprising an inner cavity; inserting a first inductor core subsection into the inner cavity; inserting a second inductor core subsection into the inner cavity; and mechanically coupling the first inductor core subsection to the second inductor core subsection to form an inductor core wound by the cast windings. The method of manufacturing optionally includes the steps of: forming at least a portion of the cast winding into an arced helical shape; forming the first inductor core subsection and the second inductor core subsection into elements of a torpid shaped inductor core; deforming the cast winding to physically allow the step of inserting the first inductor core subsection into the inner cavity; and/or deforming at least a portion of the cast winding into an arced helical coil shape after the step of inserting.

A system, for measurement of temperatures and detection of faults of parallel transformers in a DDC enclosure, that includes a first transformer and a second transformer arranged in a parallel configuration that deliver power to components of a building management system (BMS). The system also includes a direct digital control (DDC) circuit that controls power delivered through the first and the second transformers to the components of the building management system (BMS). The system further includes a first temperature sensor, operationally connected to the DDC circuit, which measures the temperature of the first transformer. Furthermore, the system includes a second temperature sensor, operationally connected to the DDC circuit, which measures the temperature of the second transformer. The DDC circuit determines a difference between the first temperature and the second temperature to predict a fault in the first transformer or the second transformer.

A wound core equipped with a laminated body including plural electrical steel sheets stacked in a ring shape in side view. The laminated body includes plural bent portions, and plural block-shaped portions at positions between adjacent bent portions. At least one block-shaped portion among the plural block-shaped portions includes a heat transmission path bordered by the electrical steel sheets at least at a portion between the stacked electrical steel sheets. The heat transmission path is included only at the at least one block-shaped portion.

A wireless charging device is provided. The plurality of protrusion portions are utilized to form the first gap between the top plate and the mobile device, so as to increase the distance formed between the top plate and the mobile device. Consequently, the first interfacial thermal resistance formed between the transmitter coil assembly and the receiver coil located in the mobile device is increased, and the second heat source generated from the transmitter coil assembly is dissipated through the wireless charging device instead of being transferred to the receiver coil located in the mobile device. In that, the temperature of the mobile device is controlled to be under the tolerance temperature threshold value during the charging process of the wireless charging device. Consequently, the charging power is enhanced, and the charging speed is increased.

An exemplary electrified vehicle assembly includes a cable connected to an electrified vehicle battery. The cable has a coiled portion providing an inductor.

A wireless device charger configured to be installed within a passenger cabin of a vehicle includes a source coil configured to generate an alternating magnetic field and a housing in pneumatic communication with the passenger cabin. The housing defines an inlet port that is configured to induct air from the passenger cabin into the housing. The wireless device charger further incorporates an air movement device configured to produce an air flow into the inlet port and through the housing.

The present disclosure relates to the field of power electronics technology, and proposes a power module, including: a case and an isolating part disposed in the case; a first air duct and a second air duct stacked to each other, separated by the isolating part, and penetrated in a front-to-rear direction in the case; a high-voltage power unit; a low-voltage power unit; and a transformer, including a high-voltage portion and a low-voltage portion, wherein the high-voltage portion includes a first magnetic core and a high-voltage coil disposed on the first magnetic core, and the low-voltage portion includes a second magnetic core and a low-voltage coil disposed on the second magnetic core, wherein the high-voltage power unit and the high-voltage portion are disposed in the first air duct, and the low-voltage power unit and the low-voltage portion are disposed in the second air duct.

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.