US 12,548,710 B2 · Thermal design of high-power wireless charging system

Abstract

A receiver construction and/or a transmitter assembly is provided for transfer of wireless power. The receiver and/or transmitter assemblies may include a respective receiver or transmitter coil assembly, a backing, and a core provided between the backing and the respective receiver or transmitter coil assembly. The receiver coil assembly and/or the transmitter coil assembly may include one or more coils provided in an epoxy operable to facilitate thermal transfer from the one or more coils to at least one of the core and the backing. A thermally conductive element may be provided between the backing and the core.

Claims20

Dependent claims

A three-phase wireless power transfer (3φ-WPT) system for wirelessly providing high-frequency AC power to an electric vehicle or a plug-in electric vehicle, the system comprising:

an off-board transmitter comprising a transmitter pad configured to wirelessly transmit the high-frequency AC power;
and
an on-board receiver comprising a receiver pad configured to receive the high-frequency AC power when the transmitter pad and the receiver pad are disposed adjacent to each other and spaced apart through a gap,
wherein the transmitter pad and the receiver pad each includes:
three bipolar coils,
an Al backplate,
ferrite core sandwiched between the three bipolar coils and the Al backplate, and
a thermally conducting film arranged and configured to thermally couple the ferrite core and the Al backplate,
wherein the transmitter pad and the receiver pad are arranged to face each other's three bipolar coils across the gap.

6 more elements

Dependencies are inferred from the claim text.

Thermal design of high-power wireless charging system

Life of this patent

Thermal design of high-power wireless charging system

Life of this patent

Abstract

Claims20