Power transmission device, and power transmitter and power receiver for the same

A power transmitter for performing contactless power transmission to a power receiver, the power transmitter comprising:

• a main body having first and second surfaces that are disposed adjacent to each other and configured to respectively support third and fourth surfaces of a power receiver;
• a power transmitting coil disposed within the main body and having a first coil portion corresponding to the first surface and a second coil portion corresponding to the second surface;
• and
• a power source supplying power to the power transmitting coil.

A power receiver for receiving power by contactless power transmission from a power transmitter including a first main body having first and second surfaces that are disposed adjacent to each other, and a power transmitting coil disposed within the first main body and including a first coil portion corresponding to the first surface and a second coil portion corresponding to the second surface, the power receiver comprising:

• a second main body having a third surface configured to be supported by the first surface during the contactless power transmission from the power transmitter to the power receiver and a fourth surface configured to be supported by the second surface during the contactless power transmission from the power transmitter to the power receiver;
• a power receiving coil disposed within the second main body and including a third coil portion corresponding to the third surface and a fourth coil portion corresponding to the fourth surface;
• and
• a rectification circuit rectifying alternating current power induced in the power receiving coil.