Inductive power transfer

A non-contact power transfer system comprising:

• a power transmitter device including
• a structure configured to form a floor,
• a sealed housing integrated into the structure and including a flat base portion,
• a transmitter coil provided in the flat base portion,
• a transmitter control unit coupled to the transmitter coil,
• a transmitter transceiver, and
• a transmitter electronic processor coupled to the transmitter control unit and the transmitter transceiver;
• and
• an electrical appliance including a power receiver device configured to be coupled in a power transfer relationship with the power transmitter device, the power receiver device including
• a second sealed housing provided at least partially within the electrical appliance and including a flat portion,
• a receiver coil within the flat portion, wherein the transmitter coil is configured to inductively transfer power to the receiver coil, wherein the flat base portion and the flat portion are aligned to axially align the transmitter coil and the receiver coil without an air gap between the flat base portion and the flat portion,
• a power conversion unit coupled to the receiver coil,
• a receiver transceiver, and
• a receiver electronic processor coupled to the power conversion unit and the receiver transceiver,
• wherein the transmitter electronic processor is configured to
• establish, using the transmitter transceiver, communication with the power receiver device,
• negotiate power transfer requirements between the power transmitter device and the power receiver device, and
• control the transmitter control unit to transfer power to the power receiver device.