POWER TRANSMISSION APPARATUS AND COIL DEVICE

摘要

In a power transmission apparatus which transmits power from a power transmission device to a power reception device in a noncontact manner through electromagnetic coupling, the power transmission device includes a power transmission coil, and an AC power source supplying AC power to a resonance element including the power transmission coil. The power reception device includes a power reception coil that receives power, and a rectifying circuit rectifying AC power induced in a resonance element including the power reception coil. One of the power transmission coil and the power reception coil includes a blank region formed at a central portion, and a first coil pattern formed in a planar shape at a peripheral portion of the blank region, and the other of the power transmission coil and the power reception coil includes a second coil pattern formed in a planar shape so as to correspond to the blank region.

主权项

1. A power transmission apparatus comprising:
a power transmission device that transmits power in a noncontact manner through electromagnetic coupling; and a power reception device that receives the power, wherein the power transmission device includes a power transmission coil; and an AC power source that supplies AC power to a resonance element including the power transmission coil, wherein the power reception device includes a power transmission coil that receives power; and a rectifying circuit that rectifies AC power induced in the a resonance element including the power reception coil, wherein one of the power transmission coil and the power reception coil includes a blank region that is formed at a central portion, and a first coil pattern that is formed in a planar shape at a peripheral portion of the blank region, and wherein the other of the power transmission coil and the power reception coil includes a second coil pattern which is formed in a planar shape so as to correspond to the blank region.