| 摘要 |
<p>A non-contact power supply device is provided with a power supply apparatus (10) and a power reception apparatus (21). The power supply apparatus (10) is provided with a first resonator (11) having a primary coil (14), and with a power source part (12) for supplying an alternating current to the first resonator (11). The power reception apparatus (21) is provided with a second resonator (22) having a secondary coil (27), and with a load (25) to which the power received by the second resonator (22) is supplied. One of the coils from among the primary coil (14) and the secondary coil (27) is a small coil while the other is a large coil. The outer diameter of the small coil is smaller than the inner diameter of the large coil. When power is transferred in a non-contacting manner to the second resonator (22) by means of the resonance created by supplying an alternating current to the first resonator (11) from the power source part (12), at least a portion of the resonator (11) having a small coil is disposed within the resonator (22) having a large coil.</p> |
