Patent ID: 9698605
Date: 2017-07-04
CPC Classifications: H01F,H02J

Claim:
1. A power transmission apparatus comprising: a power transmission device that transmits power in a noncontact manner; and a power reception device that receives the power, wherein the power transmission device includes a first main body that supports the power reception device on a first surface and a second surface substantially perpendicular and adjacent to each other; a power transmission coil that is formed by planar coils which are respectively symmetrically disposed on the first surface and the second surface inside the first main body with respect to an intersection between the first surface and the second surface, and an occupation part of the coils on the first surface and the second surface gradually increases while becoming distant from a part close to the intersection; and an AC power source that supplies AC power to a resonance element including the power transmission coil, and wherein the power reception device includes a second main body that includes third and fourth surfaces which respectively face the first and second surfaces; a power reception coil that is disposed in the second main body so as to correspond to the third and fourth surfaces; and a rectifying circuit that rectifies AC power induced in a resonance element including the power reception coil.