A thermal conductive compound for sealing a power transformer assembly and a power transformer assembly, the thermal conductive compound having a silicone resin and fillers. The fillers at least include a first filler, or main filler, and a second filler. The first filler is a natural mineral filler including finely divided quartz, quartzite, marble, sand and/or calcium carbonate. The second filler includes a given amount of aluminium hydroxide lowering linear expansion coefficient and increasing the thermal conductivity of the silicone resin.

A transformer assembly includes a housing, a core within an interior of the housing, and at least one winding positioned around the core. The at least one winding and the core are mounted to the housing with potting material. At least a portion of a fluid circuit is defined within at least one wall of the housing. The at least the portion of the fluid circuit is defined through an opening in the at least one wall of the housing in fluid communication with the interior of the housing. A transformer assembly includes a housing, a core within an interior of the housing, at least one winding positioned around the core, and a fluid circuit defined at least partially within at least one wall of the housing being configured such that heat is transferred to the fluid from at least one of the core and the at least one winding.

A surface mountable housing for a power transmitter for wireless power transfer includes a connector system configured for use to mount, at least, a transmitter antenna to an underside of a structural surface, such that the transmitter antenna is configured to couple with a receiver antenna of a power receiver when the receiver antenna is proximate to a top side of the structural surface. The surface mountable housing further includes a heat sink, the heat sink configured to rest, at least in part, below the transmitter antenna, when the power transmitter is connected to the structural surface, and configured to direct heat generated by the power transmitter away from the structural surface, and an antenna housing, the antenna housing substantially surrounding a side wall of the transmitter antenna, the antenna housing connected to the heat sink and positioned between the heat sink and the structural surface.

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.

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.

A wireless charger, comprising: a thermal-conductive plastic cover; a first circuit board; and a metallic case, wherein the first circuit board are disposed in the metallic case, wherein a wind tunnel is formed between the thermal-conductive plastic cover and the circuit board for lowering the temperature of an electronic device that is wirelessly charged on the thermal-conductive plastic cover.

Thermal conductive bobbin, for a magnetic power unit, made of an injectable and polymerizable thermoplastic composition having a plastic polymer in an amount of between 5% and 15% by weight with respect to the total weight of the composition, an aluminium nanoparticles dispersion in mineral oil in an amount of between 25% and 55% by weight with respect to the total weight of the composition, silicon carbide microparticles between 20% and 45% by weight with respect to the total weight of the composition; and additives up to 10% by weight with respect to the total weight of the composition, and wherein the thermal conductive bobbin has a dielectric rigidity higher than 5 kV/mm.

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 wireless device charger configured to produce an alternating magnetic field, thereby inducing an alternating electrical current within a capture coil of a personal electronic device proximate to the wireless device charger, said wireless device charger includes a source coil having a ferrite element configured to generate the alternating magnetic field, a housing formed of a thermally conductive material in thermal communication with the ferrite element, and an air movement device configured to produce an air flow across a surface of the housing flowing from an air inlet to an air outlet, thereby reducing a housing temperature. The surface of the housing defines a plurality of fins extending along the housing in a direction of the air flow. At least one fin in the plurality of fins has a non-symmetric surface, thereby creating turbulence in the air flow.