A transformer includes an insulation member, a high voltage part, and a low voltage part, the insulation member includes a first insulator, a second insulator, and a reference plane, the high voltage part is disposed on a first side of the reference plane, the low voltage part is disposed on a second side of the reference plane, the first insulator is disposed on the reference plane, at least a portion of the second insulator is located around the high voltage part, at least one air passage is formed by the insulation member, and at least a portion of the air passage is located within a height of the high voltage part in a normal direction of the reference plane.

Embodiments are disclosed of an apparatus including a vehicle. A battery pack including one or more individual batteries powers the vehicle. An underbody shield positioned on the underside of the vehicle protects the battery pack and has integrated therein an induction coil and one or more power conditioning components electrically coupled between the induction coil and the battery pack.

The present disclosure relates to the field of power electronics, and proposes a power conversion system, including a power cabinet, a first divider and a plurality of power modules. The power cabinet includes a first high voltage compartment and a first low voltage compartment. The first divider is arranged in the power cabinet, and extends along a height direction of the power cabinet to separate the first high voltage compartment and the first low voltage compartment. The plurality of power modules are arranged in the power cabinet, each power module includes a high voltage input terminal and a low voltage output terminal; the high voltage input terminal is arranged in the first high voltage compartment, and the low voltage output terminal is arranged in the first low voltage compartment.

A jig adapted for use in a wireless charging coil winding machine has a base portion and a main portion. The main portion is made of a heat-conductive material, and has an end surface, a plurality of passage-defining members, and a connecting member. The passage-defining members are made by three-dimensional printing, and define a plurality of air passages. The connecting member is formed with a plurality of air slots. During operation of the wireless charging coil winding machine, air is supplied into the air passages, and flows out of the jig through the air slots for facilitating heat transfer between the end surface and a wireless charging coil.

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.

A low pass filter is disclosed. In an embodiment a low-pass filter includes a current-compensated choke, a reference potential and a capacitor connected in parallel with the current-compensated choke and to the reference potential, wherein a core of the current-compensated choke is configured to have a magnetic circuit, and wherein the core has an air gap.

A power module includes a printed circuit board (PCB), a magnetic element, primary and secondary winding circuits and a regulator. The magnetic element is disposed on the PCB and has first to fourth sides. The second side is opposite to the first side, the fourth side is opposite to the third side. The primary winding circuit is disposed on the PCB and positioned in a vicinity of the first or second side. The secondary winding circuit is disposed on the first PCB and positioned in a vicinity of the third or fourth side. The regulator includes a switch disposed on the PCB, and coupled to the primary winding circuit. The switch and the magnetic element are positioned in two vicinities of two opposite sides of the primary winding circuit, respectively. A power device is also disclosed herein.

A wireless charger is provided. The wireless charger includes a housing, a baffle, a coil module, a circuit board, and a fan. The housing defines a mounting cavity, a first vent, and a second vent. The baffle is disposed in the mounting cavity and divides the mounting cavity into a first chamber and a second chamber. The coil module is disposed in the second chamber. The circuit board is disposed in the mounting cavity and electrically connected to the coil module. The fan, disposed in the first chamber and configured to guide air to flow into the first chamber from one of the first vent and the second vent and guide the air to flow out of the first chamber from the other of the first vent and the second vent, such that the air at the second vent exchanges heat with the electronic device.

Provided is a filter device to be connected between an AC power source (1) and a PWM converter (2), which includes a first AC reactor (3), a second AC reactor (4) that is connected between the PWM converter (2) and the first AC reactor (3), a filter capacitor (5) whose one end is connected to a connecting portion (9) between the first AC reactor (3) and the second AC reactor (4), and a housing (15) having a cooling air inlet (16) and a cooling air outlet (17) and containing the first AC reactor (3) and the second AC reactor (4), wherein the first AC reactor (3) is disposed upwind of the second AC reactor (4).

A charging apparatus for inductive charging. The charging apparatus comprises one or more charging coils configured to transfer power to a mobile apparatus and at least one flexible diaphragm configured so that movement of the flexible diaphragm directs air flow towards the mobile apparatus. At least one of, the one or more charging coils or actuating circuitry for actuating the one or more charging coils are mounted on the flexible diaphragm.