A component includes a magnetic core having a body formed of a first material, defining a first opening and a second opening thereon. A duct formed of a second material extends at least partially through the body between the first opening and the second opening. The first opening and the second opening are in fluid communication by way of the duct.

A charging pad for an electric vehicle includes a coolant assembly, a magnetics assembly, and an electronics assembly. The coolant assembly has a top wall and a bottom wall which form a coolant channel for circulating coolant through the coolant assembly. The magnetics assembly is configured to wirelessly receive power from a charging source induction coil arrangement facing the magnetics assembly. The magnetics assembly is adjacent the bottom wall of for heat generated by the magnetics assembly to thermally conduct from the bottom wall into coolant in the coolant channel. The electronics assembly is configured to convert the power wirelessly received by the magnetics assembly into electrical power for charging the electric vehicle. The electronics assembly is arranged adjacent the top wall for heat generated by the electronics assembly to thermally conduct from the top wall into coolant in the coolant channel.

A charging pad for an electric vehicle includes a coolant assembly, a magnetics assembly, and an electronics assembly. The coolant assembly has a top wall and a bottom wall which form a coolant channel for circulating coolant through the coolant assembly. The magnetics assembly is configured to wirelessly receive power from a charging source induction coil arrangement facing the magnetics assembly. The magnetics assembly is adjacent the bottom wall of for heat generated by the magnetics assembly to thermally conduct from the bottom wall into coolant in the coolant channel. The electronics assembly is configured to convert the power wirelessly received by the magnetics assembly into electrical power for charging the electric vehicle. The electronics assembly is arranged adjacent the top wall for heat generated by the electronics assembly to thermally conduct from the top wall into coolant in the coolant channel.

An electrical transformer includes a coil pack including windings, and spacers axially spacing turns of the windings from one another and being formed of a thermoplastic material. Sticks couple and position the spacers. The coil pack has high resistivity to creep and permits temperature rise without degradation of transformer insulation, providing for extended service life and unique methods of transformer system upgrade.

An electrical transformer includes a coil pack including windings, and spacers axially spacing turns of the windings from one another and being formed of a thermoplastic material. Sticks couple and position the spacers. The coil pack has high resistivity to creep and permits temperature rise without degradation of transformer insulation, providing for extended service life and unique methods of transformer system upgrade.

A vehicle, a vehicle power electronics assembly, and a method of packaging and cooling an inductor assembly are provided. The vehicle has a vehicle electrical system with a variable voltage converter (VVC) and an inductor assembly. The inductor assembly has a core and a winding. A bobbin is connected to and surrounds an outer perimeter of the inductor assembly. The bobbin defines an inlet, an internal fluid passage, and a series of nozzles. The nozzles in the series of nozzles are spaced apart from one another about the bobbin and are positioned to spray fluid directly onto the winding. A fluid system is connected to the inlet to provide pressurized fluid to the inlet.

A vehicle, a vehicle power electronics assembly, and a method of packaging and cooling an inductor assembly are provided. The vehicle has a vehicle electrical system with a variable voltage converter (VVC) and an inductor assembly. The inductor assembly has a core and a winding. A bobbin is connected to and surrounds an outer perimeter of the inductor assembly. The bobbin defines an inlet, an internal fluid passage, and a series of nozzles. The nozzles in the series of nozzles are spaced apart from one another about the bobbin and are positioned to spray fluid directly onto the winding. A fluid system is connected to the inlet to provide pressurized fluid to the inlet.

Electrical equipment including insulating fluid and having isoparaffins derived from a renewable carbon source, the fluid having a flash point of at least 210° C. and comprising at least 70 wt % of the isoparaffins. The electrical equipment can be installed and operated subsea.

The present invention relates to gas-insulated electrical apparatuses, in particular gas-insulated transformers or reactors, comprising a housing enclosing an interior space, in which an electrical component comprising a winding is arranged, at least a portion of the interior space defining an insulation space which is filled with an insulation fluid electrically insulating at least a part of the electrical component from the housing. According to the invention, the electrical apparatus further comprises a cooling element comprising a condenser, an evaporator and a cooling fluid to be circulated between the condenser and the evaporator. The evaporator is designed such that at least a part of the electric component is immersed in the cooling fluid in its liquid state, thus being in direct contact with the cooling fluid.

A reactor unit includes reactors; and a cooler. The reactors are disposed in at least one line on a reactor cooling surface that is one of outer surfaces of the cooler. The cooler has a cooling medium flow passage that is in contact with an inner surface on a reverse side of the reactor cooling surface. The cooling medium flows linearly from an inlet portion to an outlet portion of the cooling medium flow passage. A direction in which the cooling medium flows inside the cooling medium flow passage is same as a direction in which the reactors are disposed in the at least one line. Cooling fins are provided on the inner surface on the reverse side of the reactor cooling surface. A longitudinal direction of each cooling fin is same as the direction in which the cooling medium flows inside the cooling medium flow passage.