Patent ID: 11953646
Assignee: SONY GROUP CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 10:
11. A contactless power supply system comprising:
a power transmitting apparatus that wirelessly transmits power; and
a power receiving apparatus that wirelessly receives power from the power transmitting apparatus,
wherein at least one of the power transmitting apparatus or the power receiving apparatus includes:
a plurality of magnetic coupling elements including at least one power transfer coil and detection cods, the detection coils being configured to distribute magnetic flux in opposing orientations,
a positioning unit disposed near a respective coil from among the power transfer coil or the detection coils, and
a detector that measures an electrical parameter related to the plurality of magnetic coupling elements or to a circuit that includes the plurality of magnetic coupling elements, and determines from a change in the electrical parameter whether a foreign matter that generates heat clue to magnetic flux is present, wherein
the electrical parameter is a 0 factor of the plurality of magnetic coupling elements or of the circuit that includes the plurality of magnetic coupling elements,
a number of the detection cons is twice a number of the power transfer coils and
wherein the positioning unit includes two raised sections at opposing cons are disposed in the opening.